Increasing flexibility and strength of nonwoven material - by using bi-component tapes mechanically sepd. into fibres comprising fibrils which are enveloped by polymer matrix, etc

Increasing the flexibility and strength of a nonwoven comprises using a flat fibre structure created by carding, needling and shrinking. The structure is made of bicomponent tapes sepd. into fibres mechanically and featuring 2-3 mm long short-fibre fibrils. The fibrils are completely enveloped with...

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Bibliographische Detailangaben
Hauptverfasser:	KAPS, HEINZ, O-9061 NITZ, DE, STEINHARDT, ROLF.NAT., O-9006 NITZ, DE, SCHALLER, GERHARD., O-9610 GLAUCHAU, DE, MAEDLER, ANDREA, O-9212 NIEDERBOBRITZSCH, DE, STOLL, MICHAEL.NAT., O-9200 FREIBERG, DE, BAYER, ILSE, O-9611 GLAUCHAU-GESAU, DE, GRAEFE, FRANK. ER.NAT., O-8020 DRESDEN, DE, KLEMM, LUDWIG., O-9002 NITZ, DE, BERGER, WERNER, ER.NAT.HABIL, HEBESTREIT, GERHARD.NAT., O-9200 FREIBERG, DE
Format:	Patent
Sprache:	eng
Schlagworte:	BRAIDING COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS TEXTILES TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	Increasing the flexibility and strength of a nonwoven comprises using a flat fibre structure created by carding, needling and shrinking. The structure is made of bicomponent tapes sepd. into fibres mechanically and featuring 2-3 mm long short-fibre fibrils. The fibrils are completely enveloped with the matrix polymer as bonding agent and exposed by means of a two-phase extraction of the matrix polymer. The bonding agent is dissolved out of the fibre structure until the limit of stability is reached in the liq. phase. It is subsequently removed virtually fully in the steam phase. ADVANTAGE - The product is particularly suitable for the manufacture of synthetic leather and features high strength and exceptional flexibility.